18.—(1) Where a producer or an authorised representative is a member of a scheme, he will provide to the operator of that scheme any information which that operator will need to rely on for the purposes of—
(a)making an application to register a producer under regulation 26;
(b)making a notification under regulation 27;
(c)complying with a reporting requirement under regulations 37 or 38; and
(d)complying with a demand to produce records under regulation 40 or 41.
(2) A producer or authorised representative who provides to the operator of the scheme information to which paragraph (1) applies will—
(a)ensure that the information is in writing and is signed by—
(i)where the producer or authorised representative is an individual, that individual,
(ii)where the producer is a partnership, a partner,
(iii)where the producer is a body registered in the United Kingdom, a director or the company secretary of that body; and
(b)inform the operator of the scheme in writing of any material change in the information provided to that operator in accordance with this regulation within 28 days of the occurrence of any such change.